Polypropylene cup body forming die with adjustable wall thickness

Abstract

The utility model discloses a polypropylene cup body forming die with adjustable wall thickness, which relates to the technical field of polypropylene cup manufacturing, and comprises a base, a lower die block, a forming cavity, a die core and a support plate, the lower module is arranged at the top of the base; the forming cavity is formed in the lower module; the mold core is arranged in the forming cavity; the supporting plate is arranged in the base; a first adjusting ring is arranged on the outer surface of the mold core, a second adjusting ring is arranged on the outer surface of the first adjusting ring, a third adjusting ring is arranged on the outer surface of the second adjusting ring, a supporting assembly is arranged on the supporting plate, and a lifting assembly is arranged at the bottom of the base. The supporting plate is driven by the lifting assembly to ascend and descend, the first adjusting ring, the second adjusting ring and the third adjusting ring are supported by the supporting assembly, the effect of changing the diameter of the mold core is achieved, the mold core can be adjusted according to actual needs, the mold core can adapt to cup bodies with different thicknesses, and certain limitation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of polypropylene cup manufacturing technology, specifically a polypropylene cup forming mold with adjustable wall thickness. Background Technology

[0002] A polypropylene cup is a cup or container made of polypropylene, a common thermoplastic with excellent chemical stability, high temperature resistance, and processing performance. A polypropylene cup molding die is an industrial mold equipment specifically used to produce cups or containers made of polypropylene. This mold is based on injection molding or thermoforming processes, which use processing pressure and temperature to shape molten polypropylene plastic into the desired cup shape.

[0003] Traditional polypropylene cup molding molds have the problem of not being able to adjust the cup thickness. Cups have diverse applications, and different uses require different cup thicknesses. Traditional polypropylene cup molding molds can only produce cups of one thickness, which has certain limitations in application. In addition, traditional polypropylene cup molding molds also have the problem of not being able to cool the cup. If it cannot be cooled in time, the molded cup may collapse or warp due to its own weight or external force when demolded. Insufficient cooling may cause the polypropylene molecular chains to not be fully shaped, making the cup more prone to breakage when subjected to compression, bending or impact. Utility Model Content

[0004] The purpose of this invention is to provide a polypropylene cup molding die with adjustable wall thickness to solve the problem of the inability to adjust the cup thickness in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A polypropylene cup molding die with adjustable wall thickness, comprising:

[0007] Base;

[0008] Lower module; the lower module is located on the top of the base;

[0009] The molding cavity is located inside the lower module.

[0010] Mold core; the mold core is located inside the molding cavity;

[0011] Support plate; the support plate is located inside the base;

[0012] It also includes an adjustment assembly for adjusting the diameter of the mold core. The adjustment assembly includes a first adjustment ring, which is slidably connected to the outer surface of the mold core. A second adjustment ring is slidably connected to the outer surface of the first adjustment ring, and a third adjustment ring is slidably connected to the outer surface of the second adjustment ring. The first, second, and third adjustment rings all pass through the lower module and are slidably connected inside the base. The top of the base is provided with an injection molding assembly for injection molding into the molding cavity. The support plate is provided with a support assembly for supporting the first, second, and third adjustment rings. The bottom of the base is provided with a lifting assembly for raising and lowering the support plate.

[0013] The top of the base is also equipped with a cooling component for cooling the polypropylene cup inside the molding cavity.

[0014] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0015] In one alternative embodiment: the injection molding assembly includes a support frame, which is fixedly connected to one side of the base. A hydraulic rod is provided at the top of the support frame. The output end of the hydraulic rod passes through the support frame and is fixedly connected to an upper module. An injection port is provided on one side of the upper module. Limiting rods are fixedly connected to all four sides of the top of the upper module, and the limiting rods are slidably connected inside the support frame.

[0016] In one alternative embodiment: the support assembly includes two electrically operated telescopic rods, both of which are located on both sides of the support plate. Each of the two electrically operated telescopic rods has a support block at its output end. A sliding rod is fixedly connected to one end of the support block near the support plate, and the sliding rod is slidably connected inside the support plate.

[0017] In one alternative: the lifting assembly includes a motor located at the bottom of the base, the motor output end is provided with a threaded rod, the threaded rod is rotatably connected to the bottom of the mold core, the threaded rod is threadedly connected to the inside of the support plate, and a fixing rod is also provided between the bottom of the base and the bottom of the mold core, and the fixing rod is slidably connected to the inside of the support plate.

[0018] In one alternative: the cooling assembly includes a water tank located on top of the base, a water pump is installed inside the water tank, a cooling water pipe is installed at the output end of the water pump, the cooling water pipe is located around the inside of the lower module, and the other end of the cooling water pipe away from the water pump is also located inside the water tank.

[0019] In one alternative: the water tank is equipped with a refrigeration system.

[0020] In one alternative: the base is provided with support legs on all four sides of its bottom.

[0021] In one alternative embodiment, the mold core, the first adjusting ring, the second adjusting ring, and the third adjusting ring are fitted together.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model uses a lifting assembly to drive the support plate to rise and fall, and the support assembly supports the first adjusting ring, the second adjusting ring and the third adjusting ring, thereby achieving the effect of changing the diameter of the mold core, so that it can be adjusted according to actual needs, thus adapting to cups of different thicknesses and reducing certain limitations.

[0024] 2. This utility model achieves the effect of cooling the cup body inside the molding cavity through the cooling component set on the base, thereby avoiding the situation where insufficient cooling leads to the polypropylene molecular chains not being fully shaped, making the cup body more prone to breakage when subjected to compression, bending or impact. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a cross-sectional view of the base structure of this utility model.

[0027] Figure 3 This is a cross-sectional view of the support plate structure of this utility model.

[0028] Figure 4 This is a cross-sectional view of the mold core structure of this utility model.

[0029] Figure 5 This is a cross-sectional view of the base and lower module structure of this utility model.

[0030] The components are as follows: 100, base; 200, lower module; 300, molding cavity; 400, mold core; 500, support plate; 601, first adjusting ring; 602, second adjusting ring; 603, third adjusting ring; 701, support frame; 702, hydraulic rod; 703, upper module; 704, injection port; 801, electric telescopic rod; 802, support block; 803, sliding rod; 901, motor; 902, threaded rod; 903, fixing rod; 1001, water tank; 1002, cooling water pipe. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] In one embodiment, such as Figures 1-5As shown, a polypropylene cup molding die with adjustable wall thickness includes: a base 100, a lower module 200, a molding cavity 300, a mold core 400, a support plate 500, and an adjustment assembly; the lower module 200 is disposed on the top of the base 100; the molding cavity 300 is formed inside the lower module 200; the mold core 400 is disposed inside the molding cavity 300; the support plate 500 is disposed inside the base 100; the adjustment assembly includes a first adjustment ring 601, which is slidably connected to the outer surface of the mold core 400; a second adjustment ring 602 is slidably connected to the outer surface of the first adjustment ring 601; a third adjustment ring 603 is slidably connected to the outer surface of the second adjustment ring 602; and the first adjustment ring 601, the second adjustment ring 602, and the third adjustment ring 603 are all connected to each other. All components penetrate the lower module 200 and are slidably connected to the inside of the base 100. The top of the base 100 is provided with an injection molding assembly for injection molding into the molding cavity 300. The support plate 500 is provided with a support assembly for supporting the first adjusting ring 601, the second adjusting ring 602, and the third adjusting ring 603. The bottom of the base 100 is provided with a lifting assembly for raising and lowering the support plate 500. The top of the base 100 is also provided with a cooling assembly for cooling the polypropylene cup body inside the molding cavity 300. By sliding the first adjusting ring 601, it is made to fit against the mold core 400, thereby changing the diameter of the mold core 400. By sliding the second adjusting ring 602 and the third adjusting ring 603, they are made to fit against the first adjusting ring 601, thereby further changing the diameter of the mold core 400.

[0033] In one embodiment, such as Figure 1 As shown, the injection molding assembly includes a support frame 701, which is fixedly connected to one side of the base 100. A hydraulic rod 702 is provided on the top of the support frame 701. The output end of the hydraulic rod 702 passes through the support frame 701 and is fixedly connected to an upper module 703. An injection port 704 is provided on one side of the upper module 703. Limiting rods are fixedly connected to all four sides of the top of the upper module 703, and the limiting rods are slidably connected inside the support frame 701. By activating the hydraulic rod 702, the upper module 703 is moved closer to the lower module 200, and then the raw material is added into the molding cavity 300 through the injection port 704.

[0034] In one embodiment, such as Figure 3 and Figure 4As shown, the support assembly includes two electric telescopic rods 801, both of which are located on both sides of the support plate 500. Each of the two electric telescopic rods 801 has a support block 802 at its output end. A sliding rod 803 is fixedly connected to one end of the support block 802 near the support plate 500, and the sliding rod 803 is slidably connected inside the support plate 500. By activating the electric telescopic rods 801, the two support blocks 802 are moved closer or further apart, thereby supporting the first adjusting ring 601, the second adjusting ring 602, and the third adjusting ring 603.

[0035] In one embodiment, such as Figure 4 and Figure 5 As shown, the lifting assembly includes a motor 901, which is located at the bottom of the base 100. The output end of the motor 901 is provided with a threaded rod 902, which is rotatably connected to the bottom of the mold core 400. The threaded rod 902 is threadedly connected to the inside of the support plate 500. A fixing rod 903 is also provided between the bottom of the base 100 and the bottom of the mold core 400, and the fixing rod 903 is slidably connected to the inside of the support plate 500. By starting the motor 901, it drives the threaded rod 902 to rotate, and then, under the action of the fixing rod 903, it drives the support plate 500 to rise and fall.

[0036] In one embodiment, such as Figure 1 and Figure 2 As shown, the cooling assembly includes a water tank 1001, which is located on top of the base 100. A water pump is installed inside the water tank 1001, and a cooling water pipe 1002 is installed at the output end of the water pump. The cooling water pipe 1002 is located around the inside of the lower module 200, and the other end of the cooling water pipe 1002 away from the water pump is also located inside the water tank 1001. By starting the water pump, the coolant inside the water tank 1001 is drawn into the cooling water pipe 1002, thereby cooling the molding cavity 300 inside the lower module 200.

[0037] In one embodiment, such as Figure 1 and Figure 2 As shown, the water tank 1001 is equipped with a refrigeration system, which enables it to cool the coolant.

[0038] In one embodiment, such as Figure 1 As shown, the base 100 is provided with support legs on all four sides of its bottom, so that it can support the base 100.

[0039] In one embodiment, such as Figure 2 and Figure 4As shown, the mold core 400, the first adjusting ring 601, the second adjusting ring 602 and the third adjusting ring 603 are fitted together to prevent gaps from causing raw materials to flow in.

[0040] The above embodiment discloses a polypropylene cup molding die with adjustable wall thickness. First, the diameter of the mold core 400 is adjusted according to the required cup thickness. This can be achieved by activating an electric telescopic rod 801, which moves two support blocks 802 closer or further apart, thus supporting the first adjusting ring 601, the second adjusting ring 602, and the third adjusting ring 603 according to the appropriate thickness. Then, a motor 901 is activated, causing a threaded rod 902 to rotate. Under the action of a fixed rod 903, the support plate 500 is raised and lowered, allowing it to fit against the mold core 400. Next, a hydraulic rod 702 is activated, moving the upper module 703 closer to the lower module 200. Then, raw material is added into the molding cavity 300 through the injection port 704. After molding is complete, a water pump is activated to draw coolant from the water tank 1001 into the cooling water pipe 1002, thereby cooling the molding cavity 300 inside the lower module 200 and allowing for rapid shaping.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A polypropylene cup forming die with adjustable wall thickness, comprising: a base (100); a lower module (200); the lower module (200) is arranged on the top of the base (100); a forming cavity (300); the forming cavity (300) is arranged in the lower module (200); a mold core (400); the mold core (400) is arranged in the forming cavity (300); a support plate (500); the support plate (500) is arranged in the base (100); characterized in that it further comprises an adjusting assembly for adjusting the diameter of the mold core (400), the adjusting assembly comprises a first adjusting ring (601), the first adjusting ring (601) is slidingly connected to the outer surface of the mold core (400), the outer surface of the first adjusting ring (601) is slidingly connected with a second adjusting ring (602), the outer surface of the second adjusting ring (602) is slidingly connected with a third adjusting ring (603), and the first adjusting ring (601), the second adjusting ring (602) and the third adjusting ring (603) all penetrate the lower module (200) and are slidingly connected in the base (100), the top of the base (100) is provided with an injection assembly for injecting the inside of the forming cavity (300), the support plate (500) is provided with a support assembly for supporting the first adjusting ring (601), the second adjusting ring (602) and the third adjusting ring (603), and the bottom of the base (100) is provided with a lifting assembly for lifting the support plate (500); the top of the base (100) is further provided with a cooling assembly for cooling the polypropylene cup in the forming cavity (300).

2. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein, The injection assembly comprises a support frame (701), the support frame (701) is fixedly connected to one side of the base (100), the top of the support frame (701) is provided with a hydraulic rod (702), the output end of the hydraulic rod (702) penetrates the support frame (701) and is fixedly connected with an upper module (703), one side of the upper module (703) is provided with an injection port (704), and the top of the upper module (703) is fixedly connected with a limiting rod around, and the limiting rod is slidingly connected in the support frame (701).

3. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein The support assembly comprises two electric telescopic rods (801), two electric telescopic rods (801) are arranged on both sides of the support plate (500), the output end of the electric telescopic rod (801) is provided with a support block (802), one end of the support block (802) close to one side of the support plate (500) is fixedly connected with a sliding rod (803), and the sliding rod (803) is slidingly connected in the support plate (500).

4. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein The lifting assembly comprises a motor (901) arranged at the bottom of the base (100), a threaded rod (902) arranged at the output end of the motor (901), the threaded rod (902) being rotatably connected to the bottom of the mold core (400), the threaded rod (902) being threadedly connected to the inside of the support plate (500), and a fixing rod (903) being further arranged between the bottom of the base (100) and the bottom of the mold core (400), the fixing rod (903) being slidably connected to the inside of the support plate (500).

5. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein The cooling assembly comprises a water tank (1001) arranged at the top of the base (100), a water pump arranged in the inside of the water tank (1001), a cooling water pipe (1002) arranged at the output end of the water pump, the cooling water pipe (1002) being arranged around the inside of the lower mold (200), and the other end of the cooling water pipe (1002) away from the water pump also being arranged in the inside of the water tank (1001).

6. The wall thickness adjustable polypropylene cup body forming mold according to claim 5, wherein The inside of the water tank (1001) is provided with a refrigeration system.

7. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein The bottom of the base (100) is provided with support legs around.

8. The wall thickness adjustable polypropylene cup body forming mold according to claim 1, wherein The mold core (400), the first adjusting ring (601), the second adjusting ring (602) and the third adjusting ring (603) are mutually attached.

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